Multi-Frequency Impedance Myography: The PhaseX Effect

Muscle contraction is often detected via EMG in prosthetics. However, signal disturbances due to electrode motions can lead misinterpretations. Therefore, alternative measurement approaches are desired increase the reliability of results. In this work, a novel approach based on impedance myography proposed. By means an equivalent circuit muscle, its electrical characteristics during contractions analyzed. analysis, new biomedical marker named PhaseX Effect described. This effect specific behavior phase response when muscle contracted and interesting high robustness low processing requirements. The resilience against motion also Measurements complex spectra performed forearms three subjects relaxation corresponding muscle. subject measurements show expected model. Actual easily be simple analysis response. For better visualization, repeated while acquiring synchronized video moving forearm. particular used as that beneficial several applications such prostheses control. has requirements, making it advantageous over other activity markers. combination reliable promises become method for